Friends of Nancy Lanza said she had a lock box for her weapons, but it’s not clear if the guns used in the shootings were in it or if her son had access to it.

“He tried to purchase a gun legally, but was denied because he wasn’t old enough. He knew where the guns were. I just hate to think a gun safe could have, maybe not prevented (the massacre), but delayed it. But maybe someone would have seen something to stop it,” said Peterson.